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- Bulletin number 14000.
- BULLETIN NUMBER 14022A.
- WOODWARD AIRCRAFT ENGINE CONTROL HISTORY.
- ENGINEERING MAGAZINE. MARCH 1905.
- ELETRICAL WORLD, CIRCA 1914.
- ELECTRICAL WORLD VOLUME 64, CIRCA 1914.
- Circa 1907.
- CIRCA 1914.
- Amos Woodward's new standard friction type water wheel governor in four sizes.
- AD FROM 1914.
- A page out of a Turbine Water Wheel Manufacturer catalogue.
- LOMBARD WATER WHEEL GOVERNOR, CIRCA 1911.
- STURGESS WATER WHEEL GOVERNOR, CIRCA 1911.
- THE ELEMENTS OF ELECTRICAL TRANSMISSION, CIRCA 1911.
- GENERATION PAGE 2.